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Agent skill
kryptogo-pay-webhook
Implements KryptoGO Payment webhook/callback handling for receiving payment status notifications. Use when building webhook endpoints, handling payment callbacks, or implementing 支付狀態通知 for KryptoGO Payment.
Install this agent skill to your Project
npx add-skill https://github.com/paid-tw/skills/tree/main/plugins/kryptogo-pay/skills/kryptogo-pay-webhook
SKILL.md
KryptoGO Payment Webhook 回調處理任務
你的任務是在用戶的專案中實作 KryptoGO Payment Webhook 回調處理。
串接 Checklist
- 端點建立 - 建立 POST endpoint 接收回調
- 狀態處理 - 處理所有 5 種支付狀態
- 冪等處理 - 實作冪等性避免重複處理
- 回應確認 - 回應 HTTP 200 確認收到
- 測試驗證 - 驗證端點可正常運作
Step 1: 確認環境
詢問用戶：
-
框架類型：你使用什麼後端框架？
- Node.js (Express / Fastify / NestJS)
- Python (Django / Flask / FastAPI)
- 其他
-
資料庫：使用什麼資料庫儲存訂單？
- 需要知道如何更新訂單狀態
用戶輸入: $ARGUMENTS
Step 2: 建立 Webhook 端點
建立 POST 端點接收 KryptoGO 的回調通知。
端點路徑建議: /api/payment/callback 或 /webhook/kryptogo
必要行為:
- 接收 POST JSON body
- 驗證
payment_intent_id存在於資料庫 - 根據
status更新訂單狀態 - 回應 HTTP 200
Step 3: 處理所有支付狀態
必須處理以下 5 種狀態：
| 狀態 | 處理邏輯 |
|---|---|
pending |
通常不會收到此狀態的回調 |
success |
更新訂單為已付款，記錄 payment_tx_hash |
expired |
標記訂單為過期 |
insufficient_not_refunded |
記錄異常，等待退款 |
insufficient_refunded |
記錄退款資訊 refund_tx_hash、refund_amount |
Step 4: 實作冪等性
確保同一個 payment_intent_id 的回調不會被重複處理：
- 檢查訂單是否已經更新為最終狀態
- 使用
payment_intent_id作為冪等鍵
Step 5: 測試
- 建立一個 Payment Intent（帶
callback_url） - 完成支付後確認端點收到回調
- 驗證訂單狀態正確更新
- 驗證回應 HTTP 200
Callback Payload 格式
{
"payment_intent_id": "0h39QkYfZps7AUD1xQsj3MDFVLIMaGoV",
"client_id": "9c5a79fc1117310f976b53752659b61d",
"fiat_amount": "300.0",
"fiat_currency": "TWD",
"payment_deadline": 1715462400,
"status": "success",
"payment_chain_id": "arb",
"symbol": "USDT",
"crypto_amount": "2.53",
"payment_tx_hash": "0x1234567890abcdef...",
"received_crypto_amount": "2.53",
"aggregated_crypto_amount": "2.50",
"order_data": {
"order_id": "uid_12345",
"item_id": "100"
},
"callback_url": "https://example.com/callback",
"group_key": "buy_stone_with_usdt"
}
重要欄位
| 欄位 | 說明 |
|---|---|
payment_intent_id |
用來比對你資料庫中的訂單 |
status |
判斷該做什麼處理 |
payment_tx_hash |
成功時的區塊鏈交易 Hash |
received_crypto_amount |
實際收到的加密貨幣金額 |
aggregated_crypto_amount |
扣除手續費後的金額 |
refund_tx_hash |
退款時的區塊鏈交易 Hash |
refund_amount |
退款金額 |
order_data |
你建立 Payment Intent 時傳入的自訂資料 |
詳細參考文件
- 程式碼範例 (Node.js/Python)
- Callback Payload 完整格式
- 疑難排解
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